How does @jasonleitch know Catherine Calderwood observed social distancing throughout her visit to Fife if he hasn’t spoken to her since the story broke? We’ve only seen photos from a few moments of the trip. Here’s what he told the BBC:

There are four clear reasons for leaving your home: exercise, buying food/medical care, taking care of the vulnerable, going to work if you can’t work at home

Which of these was Catherine Calderwood doing?